6513945458951 has 32 divisors (see below), whose sum is σ = 7789289840640. Its totient is φ = 5330653401600.

The previous prime is 6513945458929. The next prime is 6513945458989. The reversal of 6513945458951 is 1598545493156.

It is a cyclic number.

It is not a de Polignac number, because 6513945458951 - 2²² = 6513941264647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6513945458921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132693731 + ... + 132742811.

It is an arithmetic number, because the mean of its divisors is an integer number (243415307520).

Almost surely, 2^{6513945458951} is an apocalyptic number.

6513945458951 is a deficient number, since it is larger than the sum of its proper divisors (1275344381689).

6513945458951 is a wasteful number, since it uses less digits than its factorization.

6513945458951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59015.

The product of its digits is 116640000, while the sum is 65.

The spelling of 6513945458951 in words is "six trillion, five hundred thirteen billion, nine hundred forty-five million, four hundred fifty-eight thousand, nine hundred fifty-one".